""I was brought up as an Episcopalian, but I never doubted that I belonged to the Catholic Church,"" says Webber in this paean to the Episcopal Church as reflected in the stories of 11 converts from Roman Catholicism. A homogeneous group, all are from the educated middle class; five, like the author, are now Episcopal priests. Taken together, their stories portray an Episcopal Church very much like the church they left, but, in their opinion, more responsive, less authoritarian and far superior in art and liturgy. Despite his preference for Anglicanism, Webber is careful not to badmouth Rome; in his mind, the two denominations belong to one big happy family and, indeed, he seems more comfortable with his Catholic cousins than with his barely mentioned evangelical Episcopal siblings. Of undoubted interest to Episcopal ""inquirer"" groups, this book should also be taken seriously by Catholic decision-makers who wonder why denominational loyalties are fraying. (Nov.)